3d spectral test of a 13 byte 6502 PRNG

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a cube made up of over 20,000 tiny grey cubes arranged in a slightly stringy pattern rotating about two axes
This is the output from a very small pseudo-random number generator written in 6502 assembly language*. Consecutive output values are graphed as X, Y and Z coordinates of a tiny cube. If the model produced perfectly random output, the rotating cube would appear full of snow, with no gaps or patterns jumping out.

*: source here, in an image - https://stardot.org.uk/forums...

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https://mltshp.com/p/1RIIE

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